Know what your city will flag — before you submit.
Upload your plan set. Plan Proof returns the corrections your jurisdiction is likely to flag, with the evidence behind each one, so you can fix them before the city does.
$39 for a single check. No subscription necessary.
Trained on real correction letters
We learn from the corrections your jurisdiction actually sends — not just generic code text.
$39, no subscription necessary
Pay per check. Every competitor is quote-gated; you can start in a minute.
Evidence on every finding
Sheet reference, code or checklist item, how often it's seen in real sets, and a confidence level — plus a published hit rate.
Pay per check
One credit, one full report. Credits never expire.
Single check
$39
One plan set, one report. No subscription.
- 1 credit — one full plan-set check
- Evidence on every finding
- Credits never expire
Or subscribe
For firms filing regularly. Per seat, cancel anytime.
Practice
$47/seat/mo
Billed annually · Solo & 1–5 person firms
- 10 Plan Proof checks/mo
- Full Olumba workspace for your tier
Team
$79/seat/mo
Billed annually · 3–15 person firms
- 25 Plan Proof checks/mo
- Full Olumba workspace for your tier
Studio
$119/seat/mo
Billed annually · Growing firms · 5–50
- Unlimited Plan Proof checks
- Full Olumba workspace for your tier
2 checks a month? Practice at $59 beats $78 in credits.
Questions
Run your first check.
One plan set. See what your city will flag before you submit.